On one of my summer vacation bike trips around in
Northwest, I visited the Painted Hills near Prineville in central
Oregon's heartland is a geological paradise. Mostly dry, as it
on the east side of the Cascade Mountains, the region is full of old
lines, lava formations and other features that are preserved and
by the dry climate. These mud hills are among the many unusual
Photos by region, by subject,
larger and more on Flickr.